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Amazon Linux AMI 2: CVE-2023-36054: Security patch for krb5 (ALAS-2023-2225)

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Amazon Linux AMI 2: CVE-2023-36054: Security patch for krb5 (ALAS-2023-2225)

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
08/07/2023
Created
09/08/2023
Added
09/08/2023
Modified
01/28/2025

Description

lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count.

Solution(s)

  • amazon-linux-ami-2-upgrade-krb5-debuginfo
  • amazon-linux-ami-2-upgrade-krb5-devel
  • amazon-linux-ami-2-upgrade-krb5-libs
  • amazon-linux-ami-2-upgrade-krb5-pkinit
  • amazon-linux-ami-2-upgrade-krb5-server
  • amazon-linux-ami-2-upgrade-krb5-server-ldap
  • amazon-linux-ami-2-upgrade-krb5-workstation
  • amazon-linux-ami-2-upgrade-libkadm5

References

  • https://attackerkb.com/topics/cve-2023-36054
  • AL2/ALAS-2023-2225
  • CVE - 2023-36054
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